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Finding the Fourth Proportional to 191,694.36, 264,540 and 105,656.48

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Solution

The fourth proportional to 191,694.36, 264,540 and 105,656.48 is: 145,806.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,694.36 : 264,540 = 105,656.48 : x
  2. Step 2: Convert to fraction form
    191,694.36/264,540 = 105,656.48/x
  3. Step 3: Cross multiply
    191,694.36x = 264,540 × 105,656.48
  4. Step 4: Simplify right side
    191,694.36x = 27,950,365,219.20
  5. Step 5: Solve for x
    x = 27,950,365,219.20/191,694.36
  6. Step 6: Final answer
    x = 145,806.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.